Read this link.
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Actually u have to change 2 things- in properties of .jar file-
1. set the permission to run it as a program
2.then open with – use custom command , there find the location of jexec and press open.
Now ur file directly open with this jexec command after pressing double click…..
—I am using it run The Editors for TopCoder
Thanks

A number is said to be special if the number of divisors it has is equal to a power of 2. For example, 6 is a special number since it has four divisors 1,2,3 and 6. A very special number is a special number whose sum of divisors is also equal to a power of 2. Given a number, print the smallest very special number that is greater than or equal to the given number.

Input:
First line of the input contains a number t, the number of test cases to follow. The next t lines each contain a number N.

Output:
Print on a new line for each test case,the smallest very special number greater than or equal to N.

The message is telling you that you are using a deprecated API. A deprecated API means an API that you shouldn’t be using because it has been replaced by something else. The code will still work for now but someday a future release may eliminate the deprecated API and then your code will break. It is a good idea to stay away from deprecated APIs. The message is telling you to invoke javac with the -Xlint:deprecation flag and it will tell you exactly what it is complaining about.